唐海,马谕杰,夏祥,袁超,张肖雨,范磊,姜威振

• 1:湖南科技大学资源环境与安全工程学院
• 2:中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室

摘要(Abstract)：

爆破作用下硐室围岩的损伤扩展过程对硐室抗爆设计具有重要意义。为探究不同位置爆源作用下硐室围岩的损伤扩展规律，利用有限元模拟软件ANSYS/LS-DYNA建立了顶爆、拱顶侧爆、侧爆、底部侧爆及底爆5个等爆源距数值计算模型，对模型中的岩体采用RHT模型分析了不同位置爆源作用下硐室围岩的损伤扩展过程。在此基础上，在模型中沿爆源至硐室边界处等距离地设置了10个振速监测点，研究了爆源中心至硐室边界处的振动速度衰减规律。结果表明：相同爆源距不同爆源位置下硐室围岩的损伤扩展规律为首先在距爆源最近距离处出现“损伤点”,在“损伤点”形成后，损伤区沿着硐室边界逐步扩展，最终形成沿硐室边界处的损伤区。相较于爆破振动速度衰减规律，爆破振动波在硐室围岩处发生全反射，使硐室围岩处爆破振动速度出现放大效应。同时，爆源至硐室围岩处的损伤演化与峰值振速变化规律相互对应，将硐室围岩处峰值振速放大效应与硐室围岩的损伤结合，认为硐室围岩是否产生损伤可通过监测其振动速度进行确定。

关键词(KeyWords)： 不同爆源位置;RHT模型;围岩损伤;振动速度;数值模拟

Abstract:

Keywords:

基金项目(Foundation): 湖南省教育厅资助科研项目(20A196);; 湖南省自然科学基金项目(2021JJ40211)

作者(Author): 唐海,马谕杰,夏祥,袁超,张肖雨,范磊,姜威振

参考文献(References)：

• [1] 王光勇，陈安敏，徐景茂.端部加密锚固硐室在重复顶爆作用下的应力波传播及衰减规律[J].土木建筑与环境工程，2018,40(6):15-21.[1] WANG Guang-Yong,CHEN An-min,XU Jing-mao.Stress wave propagation and attenuation law of reinforced end anchorage cavern under repeated top explosion[J].Journal of Chongqing Jianzhu University,2018,40(6):15-21.(in Chinese)
• [2] 余永强，王超，王光勇.拱部侧爆应力波传播及围岩裂纹形成数值分析[J].爆破，2013,30(4):9-13.[2] YU Yong-qiang,WANG Chao,WANG Guang-Yong.Numerical analysis of stress wave propagation of arch side explosion and crack formation in surrounding rock[J].Blasting,2013,30(4):9-13.(in Chinese)
• [3] 徐景茂，顾金才，陈安敏，等.爆炸平面波作用下大跨度硐室稳定性模型试验研究[J].岩土力学，2013,34(S1):47-53,59.[3] XU Jing-mao,GU Jin-cai,CHEN An-min,et al.Experimental study on stability model of long-span cavern under explosion plane wave[J].Rock Mechanics,2013,34(S1):47-53,59.(in Chinese)
• [4] 郭东明，刘康，张伟，等.不同间距邻近爆破载荷下隧道破坏规律及动态响应研究[J].北京理工大学学报，2018,38(10):1000-1005.[4] GUO Dong-ming,LIU Kang,ZHANG Wei,et al.Study on failure law and dynamic response of tunnel under adjacent blasting loads with different spacing[J].Transactions of Beijing Institute of Technology,2018,38(10):1000-1005.(in Chinese)
• [5] 刘永胜，朱思源，杨小林，等.多次爆破对大跨度硐室围岩的损伤累积及松动圈范围研究[J].爆破，2022,39(1):9-15,35.[5] LIU Yong-sheng,ZHU Si-yuan,YANG Xiao-lin,et al.Study on the damage accumulation and loose circle range of large-span chamber surrounding rock caused by multiple blasting[J].Blasting,2022,39(1):9-15,35.(in Chinese)
• [6] 郭新新，汪波，王振宇，等.爆破施工对既有裂缝、空硐隧道的动力影响[J].地下空间与工程学报，2021,17(2):590- 600.[6] GUO Xin-xin,WANG Bo,WANG Zhen-yu,et al.Dynamic influence of blasting construction on tunnel with existing cracks and cavities[J].Journal of Underground Space and Engineering,2021,17(2):590- 600.(in Chinese)
• [7] 凌同华，欧阳雄志，刘建伟，等.爆破振动下双硐隧道衬砌动力响应分析[J].交通科学与工程，2021,37(2):20-27.[7] LING Tong-hua,OU YANG Xiong-Zhi,LIU Jian-wei,et al.Dynamic response analysis of double tunnel lining under blasting vibration[J].Transportation Science and Engineering,2021,37(2):20-27.(in Chinese)
• [8] JIANG Nan,GAO Tan,ZHOU Chuan-bo,et al.Effect of excavation blasting vibration on adjacent buried gas pipeline in a metro tunnel[J].Tunnelling and Underground Space Technology,2018,81:590- 601.
• [9] 陈沛，吴剑锋，蒙云琪，等.地铁隧道小净距下穿地下洞室振速控制研究[J].工程爆破，2021,27(3):94-101.[9] CHEN Pei,WU Jian-feng,MENG Yun-qi,et al.Research on vibration velocity control of subway tunnels passing through underground caverns with small clear distance[J].Engineering Blasting,2021,27(3):94-101.(in Chinese)
• [10] 陈士海，宫嘉辰，胡帅伟.爆破荷载下围岩及支护锚杆动力响应特征模型试验研究[J].岩土力学，2020,41(12):3910-3918.[10] CHEN Shi-hai,GONG Jia-chen,HU Shuai-wei.Model test research on dynamic response characteristics of surrounding rock and support bolt under blasting load[J].Rock Mechanics,2020,41(12):3910-3918.(in Chinese)
• [11] 王超.不同位置爆源作用下锚固硐室动态响应数值分析[D].焦作：河南理工大学，2014.[11] WANG Chao.Numerical analysis of dynamic response of anchorage cavern under detonation source at different locations[D].Jiaozuo:Institutes of Technology of Henan,2014.(in Chinese)
• [12] 罗军洪，刘宏伟，林振荣，等.多因素影响下大跨度地下硐室抗爆稳定性分析[J/OL].爆破：1-10.[2022- 08-11].http://kns.cnki.net/kcms/detail/42.1164.TJ.20220616.2042.002.html.[12] LUO Jun-hong,LIU Hong-wei,LIN Zhen-rong,et al.Analysis on anti-explosion stability of large-span underground chamber under the influence of multiple factors.[J/OL].Blasting:1-10.[2022- 08-11].http://kns.cnki.net/kcms/detail/42.1164.TJ.20220616.2042.002.html.(in Chinese)
• [13] 王秋懿，马国民，李华，等.基于数值仿真计算的近接隧道爆破震动传播规律研究[J].现代隧道技术，2018,55(S2):450- 458.[13] WANG Qiu-yi,MA Guo-min,LI Hua,et al.Study on blasting vibration propagation law of close tunnel based on numerical simulation calculation[J].Modern Tunnel Technology,2018,55(S2):450- 458.(in Chinese)
• [14] 杨自友，吴德义，徐景茂.爆炸平面波下锚杆对硐室加固效果模型试验方法[J].兵工学报，2020,41(12):2478-2485.[14] YANG Zi-you,WU De-yi,XU Jjing-Mao.Model test method for tunnel reinforcement effect of bolt under explosion plane wave[J].Acta Armamentarii,2020,41(12):2478-2485.(in Chinese)
• [15] 黄佑鹏.基于HJC本构的岩石爆破损伤演化规律数值模拟[D].合肥：合肥工业大学，2020.[15] HUANG You-peng.Numerical simulation of rock blasting damage evolution based on HJC constitutive model[D].Hefei:HeFei University of Technology,2020.(in Chinese)
• [16] 汪衡，汪于程，蔡金良，等.HJC模型失效参数对侵彻能力影响的数值研究[J].兵器装备工程学报，2020,41(10):150-155.[16] WANG Heng,WANG Yu-cheng,CAI Jin-liang,et al.Numerical study on the influence of model failure parameters on penetration capability[J].Journal of Ordnance Equipment Engineering,2020,41(10):150-155.(in Chinese)
• [17] WANG Zhi-liang,WANG Hao-chen,WANG Jian-guo,et al.Finite element analyses of constitut-ive models performance in the simulation of blast-induced rock cracks[J].Computers and Geotechnics,2021:135.104172.
• [18] 李洪超.岩石RHT模型理论及主要参数确定方法研究[D].北京：中国矿业大学(北京),2016.[18] LI Hong-chao.Study on rock RHT model theory and main parameter determination method[D].Beijing:China University of Mining and Technology(Beijing),2016.(in Chinese)
• [19] LSTC.LS-DYNA keyword User′s Manual Volume Ⅱ Material Models January 30,2013(revision:2641) Version 971[DB].2013.
• [20] 王宇涛.基于RHT本构的岩体爆破破碎模型研究[D].北京：中国矿业大学(北京),2015.[20] WANG Yu-tao.Study on rock mass blasting model based on RHT constitutive model[D].Beijing:China University of Mining and Technology(Beijing),2015.(in Chinese)
• [21] 凌天龙，王宇涛，刘殿书，等.修正RHT模型在岩体爆破响应数值模拟中的应用[J].煤炭学报，2018,43(S2):434- 442.[21] LING Tian-long,WANG Yu-tao,LIU Dian-shu,et al.Application of modified RHT model in numerical simulation of rock blasting response[J].Journal of China Coal Society,2018,43(S2):434- 442.(in Chinese)
• [22] TAWADROUS A.Hard rocks under high strain-rateloading[D].Canada:Queen′s University,2010.
• [23] 崔浩，郭锐，顾晓辉，等.BP神经网络和圆筒能量模型标定炸药的JWL参数[J].火炸药学报，2021,44(5):665- 673.[23] CUI Hao,GUO Rui,GU Xiao-hui,et al.Research on calibration of explosive JWL parameters by BP neural network and cylinder energy model[J].Chinese Journal of Explosives & Propellants,2021,44(5):665- 673.(in Chinese)
• [24] 张向阳，顾金才，沈俊，等.爆炸动载条件下短密锚杆受力特点及硐室破坏特征[C]//中国土木工程学会第十五届年会暨隧道及地下工程分会第十七届年会论文集，2012:199-205.[24] ZHANG Xiang-yang,GU Jin-cai,SHEN Jun,et al.Stress charact-eristics and cavity failure characteristics of shortdense bolt under explosive dynamic load[C]//Proc-eedings of the 15th Annual Conference of China Civil Engineering Society and the 17th Annual C-onference of Tunnel and Underground EngineeringBranch,2012:199-205.(in Chinese)
• [25] 杨小林.地下工程爆破[M].武汉：武汉理工大学出版社，2009.[25] YI Chang-ping,DANIEL Johansson,JENNY Greberg.Effects of in-situ stresses on the fracturing of rock by blasting[J].Computers and Geotechnics,2017,104:321-330.
• [27] 夏祥.爆炸荷载作用下岩体损伤特征及安全阈值研究[D].武汉：中国科学院研究生院(武汉岩土力学研究所),2006.[27] XIA Xiang.Study on damage characteristics and safety threshold of rock mass under explosion load[D]Wuhan:Graduate University of Chinese Academy of Sciences(Wuhan Institute of Rock and Soil Mechanics),2006.(in Chinese)
• [28] 杨小林，朱思源，褚怀保，等.基于损伤累积的大跨度隧道(硐库)爆破振动传播规律[J].科学技术与工程，2021,21(10):3958-3963.[28] YANG Xiao-lin,ZHU Si-yuan,CHU Huai-bao,et al.Blasting vibration propagation law of long span tunnel based on damage accumulation[J].Science technology and Engineering,2021,21(10):3958-3963.(in Chinese)